I'm just brainstorming here but for your specific example could you do 
something like delegate wildcard record *.example.com to the public DNS 
servers?  Or mail.example.com, etc.

--

Steve Yates
ITS, Inc.

-----Original Message-----
From: List [mailto:[email protected]] On Behalf Of Karl Fife
Sent: Friday, July 22, 2016 3:41 PM
To: ESF - Electric Sheep Fencing pfSense Support <[email protected]>
Subject: [pfSense] DNS Forwarder # exception

DNS Forwarder had a domain override *exception* feature that I don't see in DNS 
Resolver.  I'm looking for a equivalent/workaround.

Obviously, In both dnsmasq and unbound, I can create a domain override, e.g.

Domain                    IP
example.com    10.243.0.1

However, I Don't want the override to answer queries for certain hosts, e.g. 
mail.example.com, vpn.example.com, because queries to those domains will fail 
if 10.243.0.1 is not available (e.g. mail.example.com) or not available JUST 
YET (e.g. vpn.example.com).

With dnsmasq, I could create an exception with # so those queries would just 
fall through to the public DNS, e.g.

vpn.example.com    #
mail.example.com  #
sip.example.com   10.55.47.1

Certainly I can create a HOST override that resolves the host's public IP, but 
that breaks when the public IP changes.  What's the best way to accomplish 
these domain override exceptions these days (in unbound/DNSResolver)?

Thanks
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